package com.ming.reggie.service.imp;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ming.reggie.common.CustomException;
import com.ming.reggie.common.R;
import com.ming.reggie.dao.SetmealMapper;
import com.ming.reggie.dto.SetmealDto;
import com.ming.reggie.pojo.Dish;
import com.ming.reggie.pojo.Setmeal;
import com.ming.reggie.pojo.SetmealDish;
import com.ming.reggie.service.SetmealDishService;
import com.ming.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.List;
import java.util.stream.Collectors;

@Service
public class SetmealServiceImp extends ServiceImpl<SetmealMapper, Setmeal> implements SetmealService {

    @Autowired
    private SetmealDishService setmealDishService;


    /**
     * 新增套餐，同时需要保存套餐和菜品的关联关系
     * @param setmealDto
     */
    @Transactional
    public void saveWithDish(SetmealDto setmealDto) {
        //保存套餐的基本信息，操作setmeal, 执行insert操作
        this.save(setmealDto);

        List<SetmealDish> setmealDishes = setmealDto.getSetmealDishes();
        setmealDishes.stream().map(item->{
            item.setSetmealId(setmealDto.getId());
            return item;
        }).collect(Collectors.toList());

        //保存套餐和菜品的关联信息，操作setmeal_dish, 执行insert操作
        setmealDishService.saveBatch(setmealDishes);

    }

    @Transactional
    public void removeWithDish(List<Long> ids) {
        LambdaQueryWrapper<Setmeal> queryWrapper= new LambdaQueryWrapper<>();
        queryWrapper.in(Setmeal::getId,ids);
        queryWrapper.eq(Setmeal::getStatus,1);

        int count=this.count(queryWrapper);
        if (count>0){
            throw new CustomException("套餐正在售卖中，不能删除");
        }
        this.removeByIds(ids);

        LambdaQueryWrapper<SetmealDish> lambdaQueryWrapper= new LambdaQueryWrapper<>();
        lambdaQueryWrapper.in(SetmealDish::getSetmealId,ids);

        setmealDishService.remove(lambdaQueryWrapper);
    }


}
